AI帮我写的一个VB小程序

Public Sub Main()
    Dim strIP As String
    Dim intPort As Integer
    Dim strSend As String
    Dim strReceive As String

    strIP = InputBox("请输入远程主机的IP地址：")
    intPort = InputBox("请输入远程主机的端口号：")

    ' 创建一个新的TCP客户端对象
    Dim objClient As New Winsock

    ' 连接远程主机
    objClient.Connect(strIP, intPort)

    Do Until objClient.State = 7   ' 等待与远程主机建立连接

        DoEvents  ' 释放CPU时间片，允许其他程序执行
        Sleep 500  ' 等待500毫秒

        If objClient.State = 7 Then  ' 如果已经成功连接到远程主机，则跳出循环

            Exit Do

        End If

   Loop

   If objClient.State <> 7 Then  ' 如果仍然没有建立TCP/IP连接，则弹出对话框并退出子程序

       MsgBox "无法连接远程主机！" & vbCrLf & "请重新再试", _
              vbExclamation, "Error"
       Exit Sub

   End If

   strSend = InputBox("请输入要发送到远程主机的字符：")
   objClient.SendData strSend  ' 向远程主机发送信息

   Do Until objClient.State = 9  ' 检测数据是否已发送成功

       Sleep 300  ' 等待300ms再尝试一次发送数据信号  

       If objClient.State = 9 Then  ' 如果已成功发送出数据信号，则跳出循环    	    			    	    			    	    	    	    	    	    	    	   Exit Do
       End If
   Loop

   Do Until Not IsEmpty(objClient.GetData)  ' 检测是否已从对方处得到数据信号
Sleep 500  ' 等待500ms再尝试一遍
 If Not IsEmpty(objClient.GetData) Then
Exit Do
End If  Loop
strReceive = objClient.GetData
MsgBox "你从" & _                strIP & ":" & _                intPort & _                "处得到回复如下：" & vbCrLf & vbCrLf & _                strReceive, , _                "Success"
 End Sub